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Aluminum hydroxide (Aluminium hydroxide) is the hydroxide of aluminum, and also a kind of amphoteric hydroxide. It’s a kind of alkali, but because of its obvious acidity, it also can be called a partial aluminate hydrate (HAlO2 · H2O). According to the application it can be divided into industrial grade and pharmaceutical grade.

Item | Unit | Specifications | ||||
AH-2 | Fine AH-2 | Micro AH-2 | ||||
Chemical composition | Al2O3 | % | ≥64.5 | ≥64.5 | ≥64.5 | |
Fe2O3 | % | ≤0.02 | ≤0.02 | ≤0.02 | ||
Na2O | % | ≤0.4 | ≤0.4 | ≤0.4 | ||
Igloss | % | 34.5±0.5 | 34.5±0.5 | 34.5±0.5 | ||
Attached water | % | ≤0.5 | ≤0.5 | ≤0.5 | ||
Average grain size | μm | ≤15 | ≤10 | ≤3 | ||
Whiteness |
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Note: The standard of the average particle size index, can organize production according to customer requirements | ||||||

Formula weight | 78 | Mohs Hardness | 3 |
Density g/cm3 | 2.42 | Refractive index | 1.57 |
Crystal system | Monoclinic crystal system | Appearance | White powder |
It is an inorganic additive flame retardant.
Antiflaming, smoke abatement, reduce the volume of corrosive gas generated; used alone and together with other flame retardants.
Used in fire resistance treatment to the material such as Upscale electronic plastic, engineering plastic, thermoplastic elastomer, foam, wire and cable; used as filler in the industries such as Rubber, Coating, Plastic, Paint, glass fiber plastics, Paper and so on.
Package, transportation and storage
Package: internal plastic with knitted exterior covered with film, 25kg or 40kg net weight.
Transportation: No-dangerous goods, protected from damp, rainfall and package damage in transportation.
Storage: At dry warehouse with good ventilation
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